Cisco GainMaker Optoelectronic Node 1GHz with 55 70 MHz Split Guía De Instalación
No Forward RF Signal
No Forward RF Signal
The forward RF signal can be measured at the –20 dB RF test point on the optical
receiver and the amplifier module forward output test points.
No Forward RF Signal Troubleshooting Table
Before you begin troubleshooting for no forward RF signal, verify that the amplifier
is receiving the proper forward RF input signal from the optical receiver.
Important: You cannot balance the amplifier without the proper forward RF input
Important: You cannot balance the amplifier without the proper forward RF input
signal.
Possible cause
Solution
No forward RF signal at the forward
optical receiver test point.
Refer to Low RF Output (on page 89).
Important: You cannot balance the amplifier
Important: You cannot balance the amplifier
without the proper forward RF input signal.
There is forward RF signal at the
forward optical receiver test point,
but no signal at one or all of the
forward output test points.
Verify that the amplifier module is receiving
the proper AC and DC voltages. Refer to No
AC Power (on page 85) and No DC Power (on
page 87).
Verify that all the proper accessories, pads,
EQs, and signal directors (if applicable) are
firmly installed in the correct locations.
Verify that the factory installed accessories are
firmly installed in the correct locations.
Note: Verifying factory installations involves
Note: Verifying factory installations involves
removing the amplifier module cover. Reinstall
the amplifier module cover properly or RF
signal degradation may result.
Check/replace the wiring harness.
Replace the amplifier module.
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